(1)is the science of hiding information.Where as the goal of cryp to graphy is to make data unreadable by a third party.the goal of steganography is to hide the data from a third party.In this article,I will discuss what steganography is,what purposes it

题目

(1)is the science of hiding information.Where as the goal of cryp to graphy is to make data unreadable by a third party.the goal of steganography is to hide the data from a third party.In this article,I will discuss what steganography is,what purposes it serves,and will provide an example using available software. There are a large number of steganographic(2)that most of us are familiar with(especially if you watch a lot of spymovies),ranging from invisible inkandmicrodotstosecretingahiddenmessageinthesecondletterofeachwordofalargebodyoftextandspreadspectrumradiocommunication.With computersandnetworks,there arem any other ways of hiding informations,suchas: Covertchannels(c,g,Lokiandsomedistributeddenial-of-servicetoolsusetheInternetControl(3)Protocol,orICMP,asthecommunicationchannelbetweenthe“badguy”andacompromicyedsystem) HiddentextwithinWebpages Hidingfilesin“plainsight”(c,g.whatbetterplaceto“hide”afilethanwithanimportantsoundingnameinthec:\winntsystem32directory) Nullciphers(c,g,usingthefirstletterofeachwordtoformahiddenmessageinanotherwiseinnocuoustext) steganographytoday,however,issignificantlymore(4)than the example about suggest,allowing ausertohidelargeamountsofinformationwithinimageandaudio.Theseformsofsteganographyoftenareusedinconjunctionwith cryptographysothe information is double protected;firstitisencryptedandthenhiddensothatanadvertisementfirst.find the information(an often difficult task inandofitself)and the decryptedit. The simple stapproachtohidingdatawithinanimagefileiscalled(5)signatureinsertion.In this method,we can take the binaryrepresentationofthehiddendataandthebitofeachbytewithinthecovertimage.If weareusing 24-bitcolor the amount and will be minimum and indiscriminate to the human eye.

A.Cryptography

B.Geography

C.Stenography

D.Steganography@@@SXB@@@A.methods

B.software

C.tools

D.services@@@SXB@@@A.Member

B.Management

C.Message

D.Mail@@@SXB@@@A.powerful

B.sophistication

C.advanced

D.easy@@@SXB@@@A.least

B.most

C.much

D.less


相似考题
更多“(1)is the science of hiding information.Where as the goal of cryp to graphy is to make dat ”相关问题
  • 第1题:

    下列可以打开随机文件的语句是( )。

    A.Open”filel.dat”For Input As#1

    B.Open”filel.dat”For Append As#1

    C.Open”filel.dat”For Output As#1

    D.Open”filel.dat”For Randow As#1 Len=20


    正确答案:D
    解析:本题主要考查随机文件与顺序文件的特点与区别,及文件操作的特点。Visual Basic中有3种文件访问的类型:顺序文件、随机文件、二进制文件。随机文件又称直接存取文件,简称随机文件或直接文件。随机文件的每个记录都有一个记录号,在写入数据时只要指定记录号,就可以把数据直接存入指定位置。而在读取数据时,只要给出记录号,就可直接读取。在记录文件中,可以同时进行读、写操作,所以能快速地查找和修改每个记录,不必为修改某个记录而像顺序文件那样,对整个文件进行读、写操作。其优点是数据存取较为灵活,方便,速度快,容易修改,主要缺点是占空间较大,数据组织复杂。顺序文件:顺序文件将文件中的记录一个接一个地按顺序存放。二进制访问能提供对文件的完全控制,因为文件中的字节可以代表任何东西,当要使文件的尺寸尽量小时,应使用二进制访问。在文件处理过程中,执行完Open操作后,程序将生成一个文件指针,程序可以调用LOF函数来获得返回给文件分配的字节数。在随机文件中,每个记录的长度是固定的,记录中的每个字段的长度也是固定的。因为是操作随机文件,所以选D。

  • 第2题:

    已知:DAT1 LABEL BYTEDAT2 DW 0ABCDH 依次执行SHL DAT1,1和SHR DAT2,1指令后,DAT2字存储单元中的内容是:

    A.AF34H

    B.55CDH

    C.55E6H

    D.ABCDH


    正确答案:B
    解析:ABCDH的二进制表示为10101011 1100 1101,执行SHL DAT1,1得到10101011 1001 1010,执行算术右移1位以后得到0101,0101,1100,1101,即十六进制的55CDH。

  • 第3题:

    ________ your plans with a college counselor helps you define your goal and improve your career plans or make them work.

    A Talking into

    B Talking up

    C Talking over

    D Talking on


    参考答案C

  • 第4题:

    已知: DAT1 LABEL BYTE DAT2 DW 0ABCDH 依次执行SHL DAT1,1和SHR DAT2,1指令后,DAT2字存储单元中的内容是( )。

    A.AF34H

    B.55CDH

    C.55E6H

    D.ABCDH


    正确答案:B

  • 第5题:

    要在D盘的Temp 目录下建立一个名为NamE.dat 的顺序文件,应使用______语句。

    A.Open "NamE.dat" For Output As #1

    B.Open "NamE.dat" For Input As #1

    C.Open "D:\Temp\NamE.dat" For InputAs #1

    D.Open "D:\Temp\NamE.dat" For Output As #1


    正确答案:D

  • 第6题:

    Software engineering is the science and art of specifying, designing, implementing, and(66)with economy, timeliness and elegance, programs,(67)and operating procedures whereby computers can be made useful to humanity.

    This definition implicitly sets(68)the basic goal of software engineering research and development: The basic goal of software engineering is to facilitate specification, design, implementation and evolution of programs, documentation and operating(69)which are useful to humanity in an economic,(70)and elegant manner(using the appropriate science and art).

    A.envelopment

    B.enveloping

    C.evolvement

    D.evolving


    正确答案:D

  • 第7题:

    若要对E盘上的一个非空文件“w 1.dat”进行修改,正确的打开语句是( )。

    A.fp=fopen(“w 1.dat”,“r+”);

    B.fp=fopen(“w 1.dat”,“w+”);

    C.fp=fopen(“E:\\w 1.dat”,“r+”);

    D.fp=fopen(“E:\\w 1.dat”,“w+”);


    正确答案:D

  • 第8题:

    (71)is the science of hiding information。Whereas the goal of cryptography is to make data unreadable by a third party。the goal of steganography is to hide the data from a third party。In this article,I will discuss what steganography is,what purposes it serves,and will provide an example using available software。

      There are a large number of steganographic(2)that most of us are familiar with(especially if you watch a lot of spy movies),ranging from invisible ink and microdots to secreting a hidden message in the second letter of each word of a large body of text and spread spectrum radio communication。With computers and networks,there are many other ways of hiding informations,such as:

      Covert channels(c,g,Loki and some distributed denial-of-service tools use the Internet Control(3)Protocol,or ICMP,as the communication channel between the“bad guy”and a compromicyed system)

      Hidden text within Web pages

      Hiding files in“plain sight”(c,g,what better place to“hide”a file than with an important sounding name in the c:\winnt system32 directory)

      Null ciphers(c,g,using the first letter of each word to form a hidden message in an otherwise innocuous text)

      steganography today,however,is significantly more(4)than the example about suggest,allowing a user to hide large amounts of information within image and audio。These forms of steganography often are used in conjunction with cryptography so the information is double protected;first it is encrypted and then hidden so that an advertisement first。find the information(an often difficult task in and of itself)and the decrypted it。

      The simplest approach to hiding data within an image file is called(5)signature insertion。In this method ,we can take the binary representation of the hidden data and the bit of each byte within the covert image。If we are using 24-bit color the amount and will be minimum and indiscriminate to the human eye。

    (75)处的单词应是

    A.least
    B.most
    C.much
    D.less

    答案:A
    解析:
    译文如下:
    信息隐藏学是隐藏信息的科学。而密码学的目的是让数据对于第三方不可识别,而信息隐藏学的目的则是将数据对于第三方隐藏起来。本文,我将论述信息隐藏学是什么、它的目的是什么,并且会提供使用可行软件的案例。
    有许多信息隐藏的方法实际上我们都很熟悉(特别是如果你看过一些谍战片!),从隐型墨水和微小的点点,到将信息暗含在一大段文字的每个单词的第二个字母中,还有无线通信中的扩频技术等等。使用计算机和网络,有许多其他的隐藏信息的方法,比如:
    转换信道(e.g.,洛基和一些分布式拒绝服务工具使用网际控制管理协议,或叫做icmp,作为“坏人”和受攻击的系统之间的通信信道)
    隐藏信息在网页中
    隐藏文件在“眼皮儿底下”(比如,隐藏信息在什么地方比给它取一个重要的熟悉名字放置在目录C:\winnt\system32中更好?)
    空域算法(比如,使用一段毫不相干的文字中每个单词的首写字母来表示一个隐藏的信息)
    隐写术在今天,然而明显比上面的例子更强大,允许用户隐藏大量的信息在图像和音频文件,这些形式的隐写术通常用于结合密码学,信息是双重保护的。
    最简单的方法来隐藏数据,是将信息嵌入在图像文件的像素位上(lsb),在这种方法中,我们可以把隐藏的二进制表示数据和覆盖的每个字节的图片,如果我们使用的是24位颜色,数量的变化是最小的并且肉眼是看不见的。

  • 第9题:

    问答题
    阅读下面的程序:   .mmregs  DAT0 .SET 60H  DAT1 .SET 61H  DAT2 .SET 62H  DAT3 .SET 63H  add3  .macro   P1,P2,P3,ADDRP         LD      P1,A          ADD    P2,A          ADD    P3,A  STL     A,ADDRP          .endm  ST #0034h,DAT0  ST #0243h,DAT1    ST #1230h,DAT2    ADD3 DAT0,DAT1,DAT2,DAT3 语句“.mmregs”的含义。

    正确答案: 定义存储器映像寄存器的符号名称。
    解析: 暂无解析

  • 第10题:

    单选题
    You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers,configuring Windows Server 2008 Terminal services and network application services, and configuring aweb services infrastructure. There is a server in your company. And windows Server 2008 is run. WindowsSharepoint Services (WSS) is installed on the server. You configure the server so as to make it receiveincoming e-mail. A new document library should be created. In addition, you should make sure that e-mailcan be sent to the document library by any user. Which action should be performed to achieve the goal?()
    A

    To achieve the goal,Enable anonymous authentication should be enabled for the Web application

    B

    To achieve the goal,the RSS setting should be changed for the document library

    C

    To achieve the goal,the permissions should be changed for the document library

    D

    To achieve the goal,the incoming e-mail settings should be changed for the document library


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    According to the passage, “scientific subculture” means _____.
    A

    cultural groups that are formed by scientists

    B

    people whose knowledge of science is very limited

    C

    the scientific community

    D

    people who make good contribution to science


    正确答案: B
    解析:
    由第一段第三句,人们也该了解科学家生活在其中的亚文化群以及他们是什么样的人,可知选项C为正确答案。

  • 第12题:

    问答题
    阅读下面的程序:   .mmregs  DAT0 .SET 60H  DAT1 .SET 61H  DAT2 .SET 62H  DAT3 .SET 63H  add3  .macro   P1,P2,P3,ADDRP         LD      P1,A          ADD    P2,A          ADD    P3,A  STL     A,ADDRP          .endm  ST #0034h,DAT0  ST #0243h,DAT1    ST #1230h,DAT2    ADD3 DAT0,DAT1,DAT2,DAT3 执行此段程序后,存储单元(DAT3)的运行结果多少?

    正确答案: 14a7H
    解析: 暂无解析

  • 第13题:

    (34)如果准备读文件,打开随机文件“text.dat”d的正确语句是 A.Open"text.dat"For Write As#1 B.Open"text.dat"For Binary As#1 C.Open"text.dat"For Input As#1 D.Open"text.dat"For Random As#1


    正确答案:D
    【解析】准备读文件则应该以Random方式打开文件,即以随机存取方式打开文件。

  • 第14题:

    语句MOVBX,SEGDAT1执行后,BX中存放的是()

    A.DAT1的第1个数据

    B.DAT1的偏移地址

    C.DAT1的段地址

    D.DAT1的物理地址


    答案:C

  • 第15题:

    To be inspired by other people's creativity,children should______.

    A.write ideas

    B.make up stories

    C.buy good notebooks

    D.visit museums,libraries,and science centers


    正确答案:D
    解析:事实细节题。由第六段可知:带孩子去博物馆、科学展览中心、图书馆等这些能激发孩子们创新力的地方去,在这些地方,孩子们能够观看到其他人的创意。因此,D项符合题意。

  • 第16题:

    如果准备读文件,打开顺序文件”text.dat”的正确语句是( )。

    A.Open"text.dat"For Write As#1

    B.Open"text.dat"For Binary As#1

    C.Open"text.dat"For Input As#1

    D.Open"text.dat"For Random As#1


    正确答案:C

  • 第17题:

    下列可以打开随机文件的语句是( )。

    A.Open"file 1.dat"For Input As#1

    B.Open"file1.dat"For Append As#1

    C.Open"file1.dat"For Output As#1

    D.Open"file1.dat"For Randow As#1 Len=20


    正确答案:D
    D。【解析】本题主爵考查随机文件与顺序文件的特点与区别及文件操作的特点。VisualBasic中有3种文件访问的类型:顺序文件、随机文件、二进制文件。随机文件又称直接存取文件,简称随机文件或直接文件。随机文件的每个记录都有一个记录号,在写入数据时只要指定记录号,就可以把数据直接存入指定位置。而在读取数据时,只要给出记录号,就可直接读取。在记录文件中,可以同时进行读、写操作,所以能快速地查找和修改每个记录,不必为修改某个记录而像顺序文件那样.对整个文件进行读、写操作。其优点是数据存取较为灵活,方便,速度快,容易修改,主要缺点是占空间较大,数据组织复杂。顺序文件:顺序文件将文件中的记录一个接一个地按顺序存放。二进制访问能提供对疋件的完全控制,因为文件中的字节可以代表任何东西,当要使文件的尺寸尽量小时,应使用二进制访问。在文件处理过程中,执行完Open操作后,程序将生成一个文件指针,程序可以调用LOF函数来获得返回给文件分配的字节数。在随机文件中,每个记录的长度是固定的,记录中的每个字段的长度也是固定的。因为是操作随机文件,所以选D。

  • 第18题:

    执行下面的程序段后,DAT1单元的值是( )。 DAT1 DB 12H,34H DAT2 DB 56H,78H MOV AX, WORD PTR DAT1 CMP AX, WORD PTR DAT2 JA DONE MOV BX, WORD PTR DAT2 MOV OWRD PTR DAT2,AX MOV OWRD PTR DAT1, BX DONE: HLT

    A.34H

    B.78H

    C.12H

    D.56H


    正确答案:D

  • 第19题:

    (1)is the science of hiding information。Whereas the goal of cryptography is to make data unreadable by a third party。the goal of steganography is to hide the data from a third party。In this article,I will discuss what steganography is,what purposes it serves,and will provide an example using available software。?There are a large number of steganographic(隐写)(72)that most of us are familiar with(especially if you watch a lot of spy movies),ranging from invisible ink and microdots
    to secreting a hidden message in the second letter of each word of a large body of text and spread spectrum radio communication。With computers and networks,there are many other ways of hiding informations,such as:Covert channels(c,g,Loki and some distributed denial-of-service tools use the Internet Control(3)Protocol,or ICMP,as the communication channel between the“bad guy”and a compromicyed system)Hidden text within Web pages Hiding files in“plain sight”(c,g,what better place to“hide”a file than with an important sounding name in the c:\winnt system32 directory)Null ciphers(c,g,using the first letter of each word to form a hidden message in an otherwise innocuous text)steganography today,however,is significantly more(4)than the example about suggest,allowing a user to hide large amounts of information within image and audio。These forms of steganography often are used in conjunction with cryptography so the information is double protected;first it is encrypted and then hidden so that an advertisement first。find the information(an often difficult task in and of itself)and the decrypted it。The simplest approach to hiding data within an image file is called(5)signature insertion。In this method,we can take the binary representation of the hidden data and the bit of each byte within the covert image。If we are using 24-bit color the amount and will be minimum and indiscriminate to the human eye。

    A.methods

    B.software

    C.tools

    D.services

    答案:A
    解析:

  • 第20题:

    如果准备读文件,打开顺序文件“text.dat”的正确语句是()。

    Aopen ”text.dat” For write As # 1

    Bopen ”text.dat” For Binary As # 1

    Copen ”text.dat” For Input As # 1

    Dopen ”text.dat” For Random As # 1


    C

  • 第21题:

    问答题
    阅读下面的程序:   .mmregs  DAT0 .SET 60H  DAT1 .SET 61H  DAT2 .SET 62H  DAT3 .SET 63H  add3  .macro   P1,P2,P3,ADDRP         LD      P1,A          ADD    P2,A          ADD    P3,A  STL     A,ADDRP          .endm  ST #0034h,DAT0  ST #0243h,DAT1    ST #1230h,DAT2    ADD3 DAT0,DAT1,DAT2,DAT3 语句“ADD3 DAT0,DAT1,DAT2,DAT3”是一条什么类型的语句?作用是什么?

    正确答案: 宏调用。执行三个数相加。
    解析: 暂无解析

  • 第22题:

    单选题
    如果准备读文件,打开顺序文件“text.dat”的正确语句是()。
    A

    open ”text.dat” For write As # 1

    B

    open ”text.dat” For Binary As # 1

    C

    open ”text.dat” For Input As # 1

    D

    open ”text.dat” For Random As # 1


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    汇编程序中语句DAT1DB02H的含义是()
    A

    用DAT1表示02H

    B

    定义DAT1为变量,其初值为02H

    C

    从标号DAT1对应的地址起02H个单元被分配

    D

    定义DAT1为变量,其地址为0002H


    正确答案: D
    解析: 暂无解析